I have an older Speed Queen gas dryer model AGM439L that has a badly worn shaft for the LH rear drum support roller. I want to at least rotate this shaft or if possible to replace it. It is fastened into the rear sheet metal bulkhead with a nut on the back side that is almost impossible to get a wrench on to loosen it. Can anyone tell me how to get a wrench on this nut ? I can feel it with my fingers but I dont have a wrench that will allow me to loosen it. HELP

After looking at the bracket I discovered that the complete bracket could be removed after I dismantled the burner tube which allows the shaft with the nut on the backside to be loosened. I was able to turn the worn portion of the shaft over and the roller bushing will run on a smoother part of the stub shaft. I would still like to find this part for purchase but so far the lists show it as no longer available. Can anyone assist in finding a source for this stub shaft for the roller in this Speed Queen unit ?